[[http://www.medicinenet.com/zinc_oxide-topical/article.htmSaftey* dont swallow* dont put near face or eyes* try not to get on handsObservations(Zinc)* cant see through it* not dissolving* white* you can see the particles* might settle if not touched for a while* the powder is dense because its settling down to the bottom of the beaker* particles are larger then waterObservations(Copper)* it dissolved* its tranparent* it turns the water blue* its well mixed* can see particlesLab Involving Kool-AidMass of paper:1.7gIndependant variable-concentration (g/mL)Levels : 0.5g/mL, 1g/mL, and 1.5g/mLDependant variable: appearance of kool-aid solution (5 trials)Constants-Amount of water(10mL) same tools/lab equipmentConcentration- Mass of solute/volume of solventProcedure1. Zero the balance2. Find the mass of the paper3. Add the mass of the solute you want ot the mass of the paper4. Set the balance to the new number5. Add the solute until it is balanced agian
Calcium Cholride+ Sodium Bicarbonate+Bromothymol Blue
Lab:
Copper SolfateZinc Oxide
[[http://www.medicinenet.com/zinc_oxide-topical/article.htmSaftey* dont swallow* dont put near face or eyes* try not to get on handsObservations(Zinc)* cant see through it* not dissolving* white* you can see the particles* might settle if not touched for a while* the powder is dense because its settling down to the bottom of the beaker* particles are larger then waterObservations(Copper)* it dissolved* its tranparent* it turns the water blue* its well mixed* can see particlesLab Involving Kool-AidMass of paper:1.7gIndependant variable-concentration (g/mL)Levels : 0.5g/mL, 1g/mL, and 1.5g/mLDependant variable: appearance of kool-aid solution (5 trials)Constants-Amount of water(10mL) same tools/lab equipmentConcentration- Mass of solute/volume of solventProcedure1. Zero the balance2. Find the mass of the paper3. Add the mass of the solute you want ot the mass of the paper4. Set the balance to the new number5. Add the solute until it is balanced agian
Calcium Cholride+ Sodium Bicarbonate+Bromothymol Blue
4/29/11
Check out our lab on YouTube!
http://www.youtube.com/watch?v=3VmETSgH0xE